Bobbin holder



Feb. 19, 1929.

F. A. LAZENBY BOBBIN HOLDER Filed Feb. 28, 1927 Patented Feb. 19, 1929.

warren srA'rss PATENT OFFICE.

FRANCIS A. LAZENB Y, -OF BALTIMORE, MARYLAND.

BOBBIN HOLDER.

Application filed February 28, 1927. Serial No. 171,447.

creasing the life of the bobbin holder, and

at the same time to produce a bobbin-holder or bobbin clamp for securingthe bobbin to the spindle which can be quickly and easily operated, i. clamped and unclamped and at the same time so tightly secured as to avoid slipping, holding the bobbin tightly during the winding operation.

The present device grips the bobbin so tightly that slippage in win ding is prevented and a more closely and uniformly wound bobbin results, also elimination of slippage reduces Wear and prevents the consequent loss of power. The improved holder is of such long life as to be practically indestructible. Itcan be used with any of the present types of bobbin.

Described in general terms, the bobbin holder of the invention comprises a hub or body member which is centrally bored to receive the spindle and provided with bobbin holding arms actuated by a sliding ring.

In the preferred form of the invention the arms are flaring spring members, as shown, and the hub is grooved longitudinally at spaced points on the periphery to receive the arn'is, and has n'ieans shown as a collar and positioning pins for holding the arms, which are removable and interclinngeable. and a sliding collar for closing the arms. The sliding collar is preferably grooved and engaged by a jaw or yoke carried by a hand lever by releasing the arms and in turn locking and releasing the bobbin.

In the accompanying drawing I have illustrated a bobbin holder embodying the features of my invention in the preferred form.

In the drawings:

Figure 1 is an elevation of a bobbin holder and bobbin showing a fragment of spindle and a rail which also carries the actuating lever, the parts being in operative position.

which the collar is reciprocated closing and Figure 2 is a fragmentary elevation of the holder on an enlarged scale, the bobbinand spindle being broken away.

Figure 31's an end elevation, the spindle being sectioned on line 3 3, Figure 1.

Figure 4C is a central section on the line ll in Figure 3 with the bobbin removed.

F'gure 5 is an elevation looking from the right in Figure 4 showin the holder with the bobbin removed.

Referring to the drawings by numerals, each oi which is used to indicate the same or similar parts in the-different figures, the

bobbin holder and cooperating members as shown comprise the body portion or hub 1 of the bobbin holder which is centrally bored at 2 to receive the end of the spindle 3 to which the hub is secured in any suitable manner as by means of set screw 1. The hub or body member 1, as shown, is grooved longitudinally at 5 at suitable points spaced about the periphery. In the present instance three grooves are shown spaced at an angle of 120 degrees. In these grooves are seated bobbin holding arms 6. These may be positioned at the base by means of radial pins 7 seated in the holder and extending through the bases of the arms. The arms as shown are locked in position by a removable collar 8 encircling the base of the hub and overlying the lower ends of the arms, and the arms are preferably I of spring material flaring outwardly at the free ends 13 remote from the pins at which ends they extend well beyond the hub.

The grooves or slots 5 are preferably in- I clined inwardly at their ends at 9 beyond the pins'and collar 8 to increase the play of the arms which are also flared outwardly from the base or lower end portions 10. The arms are closed by means of a. sliding collar 11. which maybe groovml about its eircun'iference at 12 and engaged by jaws 18 pivotally mounted at 14 on a hand lever 15 swinging on and from a suit-able bracket 16 on the rail 17.

The hub is also preferably reduced at its upper end at 19 forming a shoulder 20, the reduced portion permitting the arms to swing inwardly to grip the base 21 of the bobbin 22 and the central aperture 2 in the body or hub extends through the hub providing at its upper end at 24 for the seating of the centering member or pilot 25 having an enlarged base portion 26 which fits in the opening 2, the upper end 27 being reduced and formed to fit the central bore of the bobbin. The centering member or pilot is held by a set screw so that the pilot may be removed and exchanged to lit any bobbin. The entire holder may be made 01' any size to lit any size and type of bobbin. The parts are preferably all removable and interchangeable.

The manner of operation is obvious, the base of the bobbin being ,1 seed in contact with the top end 29 of the hub, the upper end 2-? (TilCOEliiGlllll ember-:25 entering the bobbin at 31, he closing collar 11 i. advanced closing the arms and gripping the bobbin. The Wl.1(l=l13, operation may then be performed without slippage. lfhe bobbin can obviously be instantly removed.

The ada 'antagnas off the holder have been out lined in the statement of: the object of the ii'wention. They are principal y, increa d length of life, efficie e.,, re grip 0t the bobbin preventing slipping, quick easy :interel iangeability, ease of operation sii'nplicity.

I have thus described specifically and in detail a bobbin hol Qler enibodying my invention in the preferred form in order that the nature and operation of the same may be clearly understood, however, the specific (*1 s n d a n d ing arms and a sliding member enclosing and operating the arms, tlr hub being; grooved to receive the arms, the grooves being deepest to ard the flaring ends of the arms.

1 11 a bobbin border, a hub, bobbin holding arms and a sliding member enclosing and operat the arms, the hub being grooved to recei the arms, pins posltionin the lower ends of the-arms and a collar locking them.

5, In a bobbin holder, a body member, flaring arms and a sliding collar enclosing and operating the arms, and a swingin forked lever to move the collar-r.

Signed by me at Baltimore, Maryland, this 26th day of iebruary, 1927.

FRANCIS A. LAZENBY. 

